CN108836593B

CN108836593B - Leg orthopedic mechanism

Info

Publication number: CN108836593B
Application number: CN201810792730.8A
Authority: CN
Inventors: 范江荣; 游景扬; 刘婕; 其他发明人请求不公开姓名
Original assignee: Xianning Central Hospital
Current assignee: Xianning Central Hospital
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2021-11-23
Anticipated expiration: 2038-07-18
Also published as: CN108836593A

Abstract

The invention discloses a leg orthopedic mechanism, which is characterized in that: the leg orthopedic device comprises a moving frame, a horizontal frame, a transmission rod and a pressing frame, wherein the leg orthopedic device is used for orthopedic of legs, the leg pressing and the orthopedic are carried out sequentially through the driving of a single motor, the pressure of the legs changes from large to small, the lateral orthopedic force of the legs changes from small to large, and the stress requirement of the legs in orthopedic is met.

Description

Leg orthopedic mechanism

Technical Field

The invention relates to a physiotherapy device, in particular to a leg orthopedic mechanism.

Background

The genu varum is a common lower limb body deformity in life, particularly common for football players and dance trainers, and when the genu varum is serious, a patient cannot move, so that the pain is great, and the external body beauty of the patient is influenced when the condition of the patient is mild. The internal and external knee turns can be treated by an operation treatment or rehabilitation device, the operation treatment cost is high, the patient is painful, and the knee joint rehabilitation device is suitable for the patient with serious illness. The existing rehabilitation apparatus only carries out orthopedic treatment on the internal and external abduction of the knee in simple binding, pressing and other modes, has unsatisfactory effect, is easy to apply force, is not easy to control and is easy to damage the leg.

Chinese patent application No. CN201610467440.7 discloses a lower limb rehabilitation device, which relates to the field of medical devices and can treat knee varus and valgus patients in lower limb deformity. The lower limb rehabilitation device comprises: the bed body is used for supporting a patient, longitudinal guide rails are fixed on two sides of the lower portion of the bed body along the direction from the bed head to the bed tail, a first orthopedic device, a leg pressing device, a second orthopedic device and a vibration device are sequentially installed on the longitudinal guide rails along the direction from the bed head to the bed tail, and a traction device is fixed at the tail of the bed body; the first orthopedic device, the second orthopedic device, the vibration device and the traction device are respectively connected with a controller arranged at the front part of the bed body through leads. The invention is suitable for treating the lower limb deformity of the knee varus.

However, the device adopts a plurality of devices to jointly shape the leg, the cooperativity is not easy to control, and the error of any one device can cause damage to the leg.

Disclosure of Invention

The invention mainly aims to provide a leg orthopedic mechanism with a compact structure, which can better control the strength of leg orthopedic and reduce the risk of injury to legs.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a leg orthopedic mechanism, which comprises a movable frame, a horizontal frame, a transmission rod and a lower pressing frame,

the movable frame comprises a sliding support frame which is arranged on the cross bar in a sliding mode, a sliding motor which is arranged on the sliding support frame, the sliding motor drives the sliding support frame to move on the cross bar through matching with the rack, the movable frame further comprises a vertical support rod which is arranged on the sliding support frame along the vertical direction, a sliding connecting part which is arranged at the top of the vertical support rod and a driving box which is arranged on the vertical support rod, the driving box comprises a driving motor which is fixedly arranged, a driving gear which is fixed on a rotating shaft of the driving motor and a driving wheel which is meshed with the driving gear, and the middle of the driving wheel is a threaded hole;

the horizontal frame comprises a main support rod, a vertical limiting frame and a vertical support, the main support rod is arranged on the sliding connection part in a telescopic mode, the vertical limiting frame is located in the middle of the main support rod, one end of the vertical support is located at one end of the main support rod and extends downwards, a strip-shaped hole is formed in the middle of the vertical support, a square hole is formed in the lower end of the vertical limiting frame, the horizontal frame further comprises a lateral extrusion block arranged at the bottom of the vertical support, a horizontal support is further arranged on the vertical support, and a circular hole formed in the vertical direction is formed in the horizontal support;

the transmission rod comprises an L-shaped driving rod and a screw rod fixedly arranged at the end part of the L-shaped driving rod, the L-shaped driving rod penetrates through the square hole, the screw rod is matched with a threaded hole in the middle of the transmission wheel, the transmission wheel is driven to rotate through a driving motor so as to drive the screw rod to stretch, an arc-shaped surface is arranged at the bending part of the L-shaped driving rod, and a limiting block is arranged at the connecting end of the L-shaped driving rod and the screw rod;

the lower pressing frame comprises a lower pressing shifting block which is inserted into the strip-shaped hole and can move up and down, a supporting rod which is fixedly connected with the lower pressing shifting block, a lower pressing block which is fixed at the end part of the supporting rod, and a return spring which is arranged between the lower pressing shifting block and the horizontal support, wherein the supporting rod penetrates through a round hole in the horizontal support.

Preferably, one side of the lateral extrusion block and one side of the lower pressing block, which are attached to the leg parts, are both cambered surfaces.

Preferably, the lateral pressing block and the lower pressing block extend to one side.

The invention has the advantages that: the leg shape correcting mechanism can correct legs, leg pressing and correction are carried out sequentially through the driving of the single motor, the pressure of the legs changes from large to small, the lateral correcting force of the legs changes from small to large, and the stress requirement of the legs in shape correction is met.

Drawings

FIG. 1 is a perspective view of a preferred embodiment according to the present invention;

FIG. 2 is a side view of a preferred embodiment according to the present invention;

FIG. 3 is a top view of a preferred embodiment according to the present invention;

FIG. 4 is an exploded view of the foot securing mechanism and the leg orthotic mechanism, showing the relative positioning of the foot securing mechanism and the leg orthotic mechanism, according to a preferred embodiment of the present invention;

FIG. 5 is an exploded view of a foot securing mechanism according to a preferred embodiment of the present invention;

FIG. 6 is a perspective view of a leg orthotic mechanism in accordance with a preferred embodiment of the present invention;

figures 7 and 8 are exploded views of an orthopedic leg mechanism according to a preferred embodiment of the present invention;

fig. 9 to 11 are operation state diagrams according to a preferred embodiment of the present invention;

fig. 12 is a part view of a driving wheel according to a preferred embodiment of the present invention;

fig. 13 and 14 are operation state diagrams according to a preferred embodiment of the present invention.

Wherein

A rear bed body 1, a rear leg 11, a middle supporting leg 12, a cross bar 13,

A front bed body 2, a front leg 21, a push rod connecting part 22,

A foot fixing mechanism 3,

An outer limit mechanism 31, a right foot outer limit block 311, a left foot outer limit block 312, a first manual lever 313, a first linkage wheel 314, an inner limit mechanism 32, a right foot inner limit block 321, a left foot inner limit block 322, a second manual lever 323, a second linkage wheel 324, a first driving wheel, a second driving wheel, a third driving wheel, a fourth driving wheel, a fourth driving wheel, a fourth driving wheel, a driving wheel,

A leg orthopedic mechanism 4, a left leg orthopedic mechanism 41,

Moving frame 411-sliding support frame 4111, sliding motor 4113, vertical support rod 4114, drive motor 4119, sliding connection portion 4115, drive box 4116, drive gear 4118, drive wheel 4117, and power unit 4117,

Horizontal frame 412-main support rod 4121, vertical bracket 4122, lateral extrusion block 4123, horizontal bracket 4124, vertical spacing frame 4125, square hole 4126, strip-shaped hole 4127, round hole 4128

A transmission rod 413-L-shaped deflector rod 4131, a screw 4132, a limit block 4133,

A lower pressing frame 414, a lower pressing shifting block 4141, a supporting rod 4142, a lower pressing block 4143, a return spring 4144, a right leg orthopedic mechanism 42,

An electric push rod 5.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 to 3, the leg deformity correction device comprises a front bed body 2 and a rear bed body 1, wherein the front bed body 2 is hinged with the rear bed body 1, the front bed body 2 comprises a front leg 21 hinged below a bed plate and a push rod connecting part 22 arranged below the bed plate, the rear bed body 1 comprises a bed plate, a rear leg 11 fixed at the lower part of the bed plate, a middle supporting leg 12 inclining forwards, and a cross bar 13 connecting the rear leg 11 and the middle supporting leg 12, and a rack is arranged on the cross bar 13;

an electric push rod 5 for controlling the angle between the front lathe bed 2 and the rear lathe bed 1 is arranged between the middle supporting leg 12 and the push rod connecting part 22,

as shown in fig. 4, the leg deformity correction device further includes a foot fixing mechanism 3 for restricting the left and right movement of the foot and a leg correction mechanism 4 for correcting the knee application force.

As shown in fig. 5, the foot fixing mechanism 3 is composed of a lateral limiting mechanism 31 and a medial limiting mechanism 32, the outer limiting mechanism 31 comprises a right foot outer limiting block 311, a left foot outer limiting block 312, a first manual 313 and a first linkage wheel 314 which are arranged in the rear bed body 1 in a sliding way, the first manual rod 313 is rotatably arranged in the rear bed body 1, one end of the first manual rod is provided with a scroll bar, the other end extending out of the side surface of the rear bed body is provided with a handle, the worm is engaged with a worm wheel of the first linkage wheel 314, the first linkage wheel 314 further comprises a gear coaxially arranged with the worm wheel, racks are arranged on the right foot outer side limiting block 311 and the left foot outer side limiting block 312, and the gears are simultaneously meshed with the racks on the right foot outer side limiting block 311 and the left foot outer side limiting block 312 to drive the right foot outer side limiting block 311 and the left foot outer side limiting block 312 to move along the horizontal direction; inboard stop gear 32 includes that slidable sets up right foot inboard stopper 321 and left foot inboard stopper 322, the manual pole 323 of second and rotatable second linkage wheel 324 that sets up in back lathe bed 1 in the back lathe bed, the rotatable setting in back lathe bed 1 of the manual pole 323 of second, one end is provided with the scroll bar, and the other end that stretches out back lathe bed 1 side is provided with the handle, the scroll bar with the turbine meshing of second linkage wheel 324, second linkage wheel 324 still include with the gear that the axle center set up of turbine, be provided with the rack on right foot inboard stopper 321 and the left foot inboard stopper 322, the gear simultaneously with rack toothing on right foot inboard stopper 321 and the left foot inboard stopper 322 drives right foot inboard stopper 321 and the left foot inboard stopper 322 move along the horizontal direction.

With reference to fig. 6 and 7, the leg-straightening mechanism 4 is composed of a left leg-straightening mechanism 41 and a right leg-straightening mechanism 42, the left leg-straightening mechanism 41 and the right leg-straightening mechanism 42 are respectively disposed on both sides of the rear bed 1, the left leg-straightening mechanism 41 and the right leg-straightening mechanism 42 are identical in structure, the left leg-straightening mechanism 41 includes a moving frame 411, a horizontal frame 412, a transmission rod 413, and a hold-down frame 414,

the moving rack 411 includes a slidable sliding support frame 4111 disposed on the bar, a sliding motor 4113 disposed on the sliding support frame 4111, the sliding motor 4113 is driven by a rack on the bar 13 to move the sliding support frame 4111 on the bar 13, and further includes a vertical support rod 4114 disposed on the sliding support frame 4111 along the vertical direction, a sliding connection portion 4115 disposed on the top of the vertical support rod 4114, and a driving box 4116 disposed on the vertical support rod 4114, wherein the driving box 4116 includes a driving motor 4119 fixedly disposed, a driving gear 4118 fixed on a shaft of the driving motor 4119, and a driving wheel 4117 meshed with the driving gear 4118, as shown in fig. 12, the middle of the driving wheel 4117 is a threaded hole;

the horizontal bracket 412 comprises a main support rod 4121 which is telescopically arranged on the sliding connection part 4115, a vertical limit bracket 4125 which is positioned in the middle of the main support rod 4121, and a vertical support 4122 which is positioned at one end of the main support rod 4121 and extends downwards, wherein a strip-shaped hole 4127 is arranged in the middle of the vertical support 4122, a square hole 4126 is arranged at the lower end of the vertical limit bracket 4125, the horizontal bracket 4124 is also arranged on the vertical support 4122, and a round hole 4128 which is vertically arranged is arranged on the horizontal support 4124;

the transmission rod 413 comprises an L-shaped deflector 4131 and a screw 4132 fixedly arranged at the end part of the L-shaped deflector 4131, the L-shaped deflector 4131 penetrates through the square hole 4126, the screw 4132 is matched with a threaded hole in the middle of the driving wheel 4117, the driving wheel 4117 is driven to rotate through a driving motor 4119 so as to drive the screw 4132 to stretch and retract, an arc-shaped surface is arranged at the bending part of the L-shaped deflector 4131, and a limit block 4133 is arranged at one end, connected with the screw 4132, of the L-shaped deflector 4131;

the lower pressing frame 414 includes a lower pressing shifting block 4141 inserted into the bar-shaped hole 4127 and capable of moving up and down, a supporting rod 4142 fixedly connected with the lower pressing shifting block 4141, a lower pressing block 4143 fixed at the end of the supporting rod 4142, and a return spring 4144 arranged between the lower pressing shifting block 4141 and the horizontal bracket 4124, wherein the supporting rod 4142 passes through a round hole 4128 on the horizontal bracket 4124.

One side of the lateral extrusion block 4123 and one side of the lower pressing block 4143, which is attached to the leg, are both cambered surfaces so as to be attached to the leg, and the comfort level of a human body is improved.

The lateral extrusion block and the lower pressing block extend to one side to form a section.

The working mode of the foot fixing mechanism 3 is as follows: the positions of the outer side limit blocks are adjusted simultaneously through the outer side limit mechanisms 31 to enable the legs to be in a comfortable state, and then the inner side limit blocks are adjusted simultaneously through the inner side limit mechanisms 32 to enable the inner side limit blocks to compress the feet. Self-locking is realized through a worm and gear structure.

The working process of the invention is as follows: according to the leg malformation condition of the patient, the inward pressing or the outward pressing is selected to adjust the position of the leg correcting mechanism 4, then the patient lies on the bed, the foot fixing mechanism 3 is used for fixing the foot, the sliding motor 4113 is started to properly adjust the front and back positions of the leg correcting mechanism 4, after the adjustment is completed, the driving motor 4119 of the leg correcting mechanism 4 is started, in combination with fig. 9 and 10, the driving motor 4119 drives the transmission rod 413 to move outwards, the arc-shaped surface on the L-shaped deflector rod 4131 downwards presses the lower pressing frame 414 to press the leg, as the lower pressing frame 414 moves downwards, the force application direction of the arc-shaped surface to the lower pressing frame 414 is changed from downward to lateral force, so that the downward force to the leg is reduced, the lateral force to the lower pressing frame 414 is increased, as the lower pressing frame 414 is connected with the horizontal frame 412 through the vertical round hole, when the lateral force to the lower pressing frame 414 is increased, that is, the lateral force applied to the entire horizontal frame 412 is increased, and the lateral pressing block 4123 is moved outward, thereby continuously applying a lateral force to the leg portion.

The arc-shaped surface on the L-shaped shift lever 4131 is designed to apply force in a manner that the force in the vertical direction is dominant at the beginning, the force in the vertical direction is gradually reduced, and the force in the horizontal direction is gradually increased, so that the force is suitable for the situation of treating patients.

It should be noted that the present invention can switch the modes by adjusting the positions of the left leg straightening mechanism 41 and the right leg straightening mechanism 42, as shown in fig. 13 for the operation of treating the inner leg-turning type, and in fig. 14 for the operation of treating the outer leg-turning type.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A leg orthotic mechanism, comprising: comprises a movable frame, a horizontal frame, a transmission rod and a lower pressing frame,

the movable frame comprises a sliding support frame which is arranged on a cross bar in a sliding manner, a sliding motor which is arranged on the sliding support frame, a vertical support rod which is arranged on the sliding support frame along the vertical direction, a sliding connecting part which is arranged at the top of the vertical support rod and a driving box which is arranged on the vertical support rod, wherein the sliding motor is matched with a rack to drive the sliding support frame to move on the cross bar;

the transmission rod comprises an L-shaped driving rod and a screw rod fixedly arranged at the end part of the L-shaped driving rod, the L-shaped driving rod penetrates through the square hole and the strip-shaped hole, the screw rod is matched with a threaded hole in the middle of the transmission wheel, the transmission wheel is driven to rotate through a driving motor so as to drive the screw rod to stretch, an arc-shaped surface is arranged at the bending part of the L-shaped driving rod, and a limiting block is arranged at the connecting end of the L-shaped driving rod and the screw rod;

the lower pressing frame comprises a lower pressing shifting block which is inserted into the strip-shaped hole and can move up and down, a supporting rod fixedly connected with the lower pressing shifting block, a lower pressing block fixed at the end part of the supporting rod, and a return spring arranged between the lower pressing shifting block and the horizontal support, the supporting rod penetrates through a round hole in the horizontal support, and the lower pressing shifting block penetrates through the strip-shaped hole and can be abutted to the L-shaped shifting rod.

2. The leg orthotic mechanism of claim 1, wherein: one side of the lateral extrusion block and one side of the lower pressing block, which are attached to the leg parts, are cambered surfaces.

3. A leg orthotic mechanism according to claim 2, wherein: the lateral extrusion block and the lower pressing block extend to one side to form a section.